tools: ocaml: In configure, check for ocamlopt

If ocaml.m4 didn't find ocamlopt, disable all the ocaml builds.

Currently our Makefiles do not work properly when the native code
compiler (`ocamlopt') is not available.  In principle this should be
fixed to fall back to bytecode, but this is not a task for this stage
of the Xen 4.9 release.

Without this change, we cannot build on systems with only ocamlc.
That includes Debian jessie ARM64, as used on the new ARM64 hardware
in the Xen Project CI test lab.

When the Makefiles are fixed, this commit should be reverted.

Committers: Please rerun autogen.sh.

CC: Julien Grall <julien.grall@arm.com>
CC: Christian Lindig <christian.lindig@citrix.com>
CC: Jonathan Ludlam <Jonathan.Ludlam@citrix.com>
CC: David Scott <dave@recoil.org>
CC: Wei Liu <wei.liu2@citrix.com>
Tested-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>

diff --git a/tools/configure b/tools/configure
index 7a57e6562db3eb74f1b1652b00e7685cef7356b8..6ea86849441118e47b642a86f4ec5d6578790da3 100755 (executable)
--- a/tools/configure
+++ b/tools/configure
@@ -6566,11 +6566,11 @@ done
 
 if test "x$ocamltools" = "xy"; then :
 
-    if test "x$OCAMLC" = "xno" || test "x$OCAMLFIND" = "xno"; then :
+    if test "x$OCAMLOPT" = "xno" || test "x$OCAMLFIND" = "xno"; then :
 
         if test "x$enable_ocamltools" = "xyes"; then :
 
-            as_fn_error $? "Ocaml tools enabled, but unable to find Ocaml" "$LINENO" 5
+            as_fn_error $? "Ocaml tools enabled, but missing ocamlopt or ocamlfind" "$LINENO" 5
 fi
         ocamltools="n"
 

diff --git a/tools/configure.ac b/tools/configure.ac
index 307998d8a5a114e44e836bc425bc38348da905af..a47d0fdbe6c55de2b84dca379b3455b39eeb57ed 100644 (file)
--- a/tools/configure.ac
+++ b/tools/configure.ac
@@ -293,9 +293,9 @@ AC_PROG_OCAML
 AC_PROG_FINDLIB
 
 AS_IF([test "x$ocamltools" = "xy"], [
-    AS_IF([test "x$OCAMLC" = "xno" || test "x$OCAMLFIND" = "xno"], [
+    AS_IF([test "x$OCAMLOPT" = "xno" || test "x$OCAMLFIND" = "xno"], [
         AS_IF([test "x$enable_ocamltools" = "xyes"], [
-            AC_MSG_ERROR([Ocaml tools enabled, but unable to find Ocaml])])
+            AC_MSG_ERROR([Ocaml tools enabled, but missing ocamlopt or ocamlfind])])
         ocamltools="n"
     ], [
         AX_COMPARE_VERSION([$OCAMLVERSION], [lt], [3.09.3], [